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O mixin WindowOrWorkerGlobalScope descreve vários recursos comuns às interfaces Window e WorkerGlobalScope. Cada uma dessas interfaces pode, obviamente, adicionar mais recursos além dos listados abaixo.
Nota: WindowOrWorkerGlobalScope é um mixin e não uma interface; você não pode atualmente criar um objeto do tipo WindowOrWorkerGlobalScope.
Properties
These properties are defined on the WindowOrWorkerGlobalScope mixin, and implemented by Window and WorkerGlobalScope.
WindowOrWorkerGlobalScope.cachesSomente leitura- Returns the
CacheStorageobject associated with the current context. This object enables functionality such as storing assets for offline use, and generating custom responses to requests. WindowOrWorkerGlobalScope.indexedDBSomente leitura- Provides a mechanism for applications to asynchronously access capabilities of indexed databases; returns an
IDBFactoryobject. WindowOrWorkerGlobalScope.isSecureContextSomente leitura- Returns a boolean indicating whether the current context is secure (
true) or not (false). WindowOrWorkerGlobalScope.originSomente leitura- Returns the origin of the global scope, serialized as a string.
Methods
These properties are defined on the WindowOrWorkerGlobalScope mixin, and implemented by Window and WorkerGlobalScope.
WindowOrWorkerGlobalScope.atob()- Decodes a string of data which has been encoded using base-64 encoding.
WindowOrWorkerGlobalScope.btoa()- Creates a base-64 encoded ASCII string from a string of binary data.
WindowOrWorkerGlobalScope.clearInterval()- Cancels the repeated execution set using
WindowOrWorkerGlobalScope.setInterval(). WindowOrWorkerGlobalScope.clearTimeout()- Cancels the delayed execution set using
WindowOrWorkerGlobalScope.setTimeout(). WindowOrWorkerGlobalScope.createImageBitmap()- Accepts a variety of different image sources, and returns a
Promisewhich resolves to anImageBitmap. Optionally the source is cropped to the rectangle of pixels originating at (sx, sy) with width sw, and height sh. WindowOrWorkerGlobalScope.fetch()- Starts the process of fetching a resource from the network.
WindowOrWorkerGlobalScope.setInterval()- Schedules a function to execute every time a given number of milliseconds elapses.
WindowOrWorkerGlobalScope.setTimeout()- Schedules a function to execute in a given amount of time.
Specifications
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard The definition of ' WindowOrWorkerGlobalScope mixin' in that specification. |
Padrão em tempo real | This is where the main mixin is defined. |
| Fetch The definition of 'fetch()' in that specification. |
Padrão em tempo real | Definition of the fetch() method. |
| Service Workers The definition of 'caches' in that specification. |
Rascunho atual | Definition of the caches property. |
| Indexed Database API 2.0 The definition of 'indexedDB' in that specification. |
Recomendação | Definition of the indexedDB property. |
| Secure Contexts The definition of 'isSecureContext' in that specification. |
Candidata a Recomendação | Definition of the isSecureContext property. |
Browser compatibility
Estamos convertendo nossos dados de compatibilidade para o formato JSON. Esta tabela de compatibilidade ainda usa o formato antigo, pois ainda não convertemos os dados que ela contém. Descubra como você pode ajudar!
| Feature | Firefox (Gecko) | Chrome | Edge | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | 52 (52) | 54 | ? | ? | ? | ? |
origin |
54 (54) | 59 | ? | ? | ? | ? |
| Feature | Android Webview | Edge | Firefox Mobile (Gecko) | Android | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|---|---|
| Basic support | ? | ? | 52.0 (52) | ? | ? | ? | ? | 54 |
origin |
? | ? | 54.0 (54) | ? | ? | ? | ? | 59 |